Witsathit Somrak. (2019) The Opportunities for the Tourism Industry Enhanced by Social Media: Cultural and Heritage Tourism Products in Thailand. Rangsit University:ม.ป.ท.Witsathit Somrak. 2019. The Opportunities for the Tourism Industry Enhanced by Social Media: Cultural and Heritage Tourism Products in Thailand. ม.ป.ท.:Rangsit University;Witsathit Somrak. The Opportunities for the Tourism Industry Enhanced by Social Media: Cultural and Heritage Tourism Products in Thailand. ม.ป.ท.:Rangsit University, 2019. Print.